 /*******************************************************************************
  * Copyright (c) 2003, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.internal.activities.ws;

 import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.ui.activities.IActivity;
 import org.eclipse.ui.activities.IActivityManager;
 import org.eclipse.ui.activities.NotDefinedException;

 /**
  * Provides labels for <code>IActivity</code> objects. They may be passed
  * directly or as <code>String</code> identifiers that are matched against
  * the activity manager.
  *
  * @since 3.0
  */
 public class ActivityLabelProvider extends LabelProvider {

     private IActivityManager activityManager;

     /**
      * Create a new instance of the receiver.
      *
      * @param activityManager
      * @since 3.0
      */
     public ActivityLabelProvider(IActivityManager activityManager) {
         this.activityManager = activityManager;
     }

     /**
      * @param activity
      * @return
      */
     private String getActivityText(IActivity activity) {
         try {
             return activity.getName();
         } catch (NotDefinedException e) {
             return activity.getId();
         }
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
      */
     public Image getImage(Object element) {
         return null;
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
      */
     public String getText(Object element) {
         if (element instanceof String ) {
             return getActivityText(activityManager
                     .getActivity((String ) element));
         } else if (element instanceof IActivity) {
             return getActivityText((IActivity) element);
         } else {
             throw new IllegalArgumentException ();
         }
     }
 }

